A
surfactant (or a mixture containing one or more surfactants) having cleaning properties in
dilute solutions (soaps are surfactants and detergents).
Source:
PAC, 1972, 31, 577
(Manual of Symbols and Terminology for Physicochemical Quantities and Units, Appendix
II: Definitions, Terminology and Symbols in Colloid and Surface Chemistry)
on page 612